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(Credit: Anatolii Stoiko/Shutterstock) NewsletterSign up for our email newsletter for the latest science newsOne of the unsung foundations of modern civilization is the ability to detect oscillating fields, be they radio waves, visible light, x-rays, magnetic fields, gravitational waves among the countless varieties. It is no exaggeration to say that our 21st century lives depend on this ability. So it should come as no surprise that physicists would like to do this with ever increasing accuracy and sensitivity. In recent years, they have learned how to use the strange properties of quantum particles to make measurements limited only by the Heisenberg uncertainty principle. This places important limits on the precision with which certain quantum properties can be known. But by using tricks like quantum entanglement and quantum error correction, they can squeeze this limit further, making it possible to sense oscillating fields, such as gravitational waves, that are so weak they would be impossible to measure by other means. But physicists would dearly love to do better.Computational SensingNow Richard Allen at the Massachusetts Institute of Technology in Cambridge and colleagues say exactly this is possible by combining the power of quantum sensing with another bizarre property of the quantum world its ability to perform powerful calculations via quantum computation.Their findings not only improve existing sensing techniques but establish a new fundamental limit that defines the ultimate precision with which an oscillating field with an unknown strength and frequency can be detected. In this way, they say, it is possible to significantly beat the currently accepted limits on sensing. We present a quantum computing enhanced sensing protocol that outperforms all existing approaches, say Allen and co.The traditional way to detect an unknown oscillating field is to sample its strength at regular intervals at a known frequency, then at another known frequency and so on. Scanning through the frequencies in this way should eventually find a match with the unknown signal. But Allen and co realized that quantum computing allows an entirely different type of search using a quantum approach known as Grovers algorithm. This uses the quantum phenomenon of superposition to search many frequencies at once. Physicists have long known that a search through a list of N objects takes a time proportional to the order of N. Grovers algorithm does it much faster, in a time of the order of the square root of N. Allen and cos breakthrough is to realize that Grovers algorithm is a game changer because quantum sensing is a search through a number of frequencies. By combining quantum computing with quantum search, the team have established a new bound on how precise quantum search can become. They call this the Grover-Heisenberg limit.The team also show how to implement their approach. One quantum system that is particularly sensitive to external fields is nitrogen-vacancy centers in diamond. These use the quantum properties of electrons to measure changes in an external magnetic field. And because nitrogen-vacancy centers can be built into quantum computers, this information can also be processed easily. The result is a solid-state machine in which quantum sensors and quantum processors are integrated. They go on to simulate how such an experiment would work and that it would significantly outperform existing techniques. We have shown that by augmenting quantum sensors with a quantum computer, significant metrological gains are achievable, they say. Proof-Of-PrincipleThats interesting work that can be put to good use immediately using current technology. Whats needed now is for somebody to try it. That, presumably, will not take long.But perhaps more significant is that the technique paves the way for a new approach to sensing: By co-designing metrological codes with novel sensing protocols, the resulting logical quantum sensors could robustly interface with the physical world at the hardware level, opening new possibilities in quantum sensing, they conclude.That means were likely to see computational sensors in areas as diverse as magnetic resonance imaging for biological imaging, for dark matter searches and for the detection of gravitational wavesto name just a few. And were likely to see it soon!Ref: Quantum Computing Enhanced Sensing: arxiv.org/abs/2501.07625computing1 free article leftWant More? Get unlimited access for as low as $1.99/monthSubscribeAlready a subscriber?Register or Log In1 free articleSubscribeWant more?Keep reading for as low as $1.99!SubscribeAlready a subscriber?Register or Log In

This elegant nanoflower adds antioxidant, antibacterial and antibiofilm properties when applied to electrospun nanofiber bandages. Credit: ACS Advanced Bio MaterialsShareFlowers may be small, but their petals often add up to a comparatively massive amount of surface area. The same can be said even at the microscopic level of a nanoflower, compound combinations in chemistry that grow to form plantlike shapes. With this in mind, a research team based at Italys University of Genoa have designed a novel nanostructure that relies on carnation-like nanoflowers containing enough surface area to host numerous wound-healing drug molecules.The medical innovation is detailed in a study published in the journal ACS Applied Bio Materials. According to its creators, the bandage prototype uses two polyphenol-based materialscopper phosphate and tannic acid. These reagents possess well-documented anti-inflammatory and antibiotic properties. Once mixed and placed in a saline solution, the copper phosphate-tannic acid compounds begin to self-assemble and grow into recognizable, flower-like structures. From there, researchers then carefully attached these nanoflowers on small strips of electrospun nanofabric.Polyphenols, natural compounds abundant in phenolic structures, have received widespread attention due to their antioxidant, anti-inflammatory, antibacterial, and anticancer properties, making them valuable for biomedical applications, the team wrote in their study. However, the green synthesis of polyphenol-based materials with economical and environmentally friendly strategies is of great significance. Get the Popular Science newsletter Breakthroughs, discoveries, and DIY tips sent every weekday. By signing up you agree to our Terms of Service and Privacy Policy.With the dressings ready for testing, the team introduced these nanoflower bandage samples into harmful bacteria cultures, including E. coli, Pseudomonas aeruginosa, and Staphylococcus aureus. According to an accompanying announcement on January 31st, the nanoflower-covered fabrics not only inactivated the bacteria, but did so through the addition of antibiotic-resistant biofilmsall while protecting lab-grown human cells.Researchers say their new, nanoflower based approach appears to be both cost-effective and extremely efficient, allowing for better means to speed up wound healing and fight infections. The possible benefits from nanoflowers arent limited to medicine, either. Another study, published in October 2024 in Advanced Materials, points to uses across real-time imaging, wastewater purification, and even microrobotics.

NewsAnimalsHotter cities? Here come the ratsCities with higher temperatures and dwindling green space also have more rats Rats love warmer weather. As temperatures in cities increase, people make more rat complaints, a new study shows.Jamie BettsBy Bethany Brookshire1 hour agoIf your city is getting rattier, climate change may be partially to blame.In an analysis of 16 cities around the world, those that saw the biggest temperature rises over the years also had more rat complaints over time, researchers report January 31 in Science Advances. Increased urbanization was also connected with more rat reports. The results suggest that higher temperatures may make rats and the diseases they can spread even harder to keep at bay.

Nature, Published online: 30 January 2025; doi:10.1038/d41586-025-00330-wScientists have found the ingredients for life in the fragments of an asteroid (just not quite the right ones). Plus, researchers weigh up the pros and cons of DeepSeek-R1.

Footprints from people and animals feeling the eruption of Vesuvius in 1995 B.C. were recently discovered in a town near Pompeii.

The FDA has approved Journavx, an oral medication for treating pain that doesn't target the brain like addictive opioids.

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I will never get tired of Miu Akatsukis gorgeous 2D animations that look like 3D renders, and I hope the artist will not get tired of making them. Check out this new one, a beautiful fan with a slithering snake; still in progress but already mind-blowing.Akatsuki used Adobe After Effects powerful abilities to make the image look so realistically three-dimensional. The hand is probably the result of their earlier experiment, honed to perfection this year.You should definitely visit Akatsukis X/Twitter to see other works, like this amazing snake, which might have been an inspiration for the current project, and this delicious mint chocolate chip ice cream animation.Here are some other impressive pieces you will adore:Join our 80 Level Talent platformand ournew Discord server, follow us onInstagram,Twitter,LinkedIn,Telegram,TikTok, andThreads,where we share breakdowns, the latest news, awesome artworks, and more.Source link The post Stunning 3D-Like Fan with Dancing Snake Animation Created in Adobe After Effects appeared first on CG SHARES.

Tuatara Games, who previously shared a nicetrick to fake lighting on particles, a breakdown for a rain drops shader, and a tip for adding variety to panning textures, unveiled new advice for setting up a creative distortion effect that looks really cool in Unreal Engine 5.These waves have multiple dynamic parameters to control frequency, amplitude, and speed on each axis. Try it out and have a look at more of Tuatara Gamesrecent cool tutorials:We highly recommend you to follow the Tuatara team onX/Twitterfor more great tips and tricks andjoin our80 Level Talent platformand ournew Discord server, follow us onInstagram,Twitter,LinkedIn,Telegram,TikTok, andThreads,where we share breakdowns, the latest news, awesome artworks, and more.Source link The post How To Set Up Dynamic Wave UVs In Unreal Engine 5 appeared first on CG SHARES.